| Image | Item No. | Description | By |
| 3062 | Brick, Round 1 x 1
Catalog: Parts: Brick, Round | 82 |
| 3062a | Brick, Round 1 x 1 - Solid Stud, Bottom Lip
Catalog: Parts: Brick, Round | 53 |
| 3062old | Brick, Round 1 x 1 - Solid Stud, No Bottom Lip
Catalog: Parts: Brick, Round | 2 |
| 20952 | Brick, Round 1 1/2 x 1 1/2 x 2/3 Dome Top
Catalog: Parts: Brick, Round | 17 |
| x12 | Brick, Round 1 x 1 with Ball (Finial)
Catalog: Parts: Brick, Round | 1 |
| 4588 | Brick, Round 1 x 1 with Fins
Catalog: Parts: Brick, Round | 1 |
| 15395 | Brick, Round 2 x 2 Dome Bottom
Catalog: Parts: Brick, Round | 11 |
| 24947 | Brick, Round 2 x 2 Dome Bottom with Studs
Catalog: Parts: Brick, Round | 8 |
| 553 | Brick, Round 2 x 2 Dome Top
Catalog: Parts: Brick, Round | 110 |
| 553a | Brick, Round 2 x 2 Dome Top without Bottom Axle Holder
Catalog: Parts: Brick, Round | 49 |
| 20953 | Brick, Round 2 x 2 Sphere with Stud / Robot Body
Catalog: Parts: Brick, Round | 2 |
| 3941 | Brick, Round 2 x 2 with Axle Hole
Catalog: Parts: Brick, Round | 52 |
| 92947 | Brick, Round 2 x 2 with Axle Hole and Grille / Fluted Profile
Catalog: Parts: Brick, Round | 1 |
| 17485 | Brick, Round 2 x 2 with Pin Holes
Catalog: Parts: Brick, Round | 5 |
| 87081 | Brick, Round 4 x 4 with Hole
Catalog: Parts: Brick, Round | 3 |
| 65138 | Brick, Round 4 x 4 x 2/3 Dome Top with Hole
Catalog: Parts: Brick, Round | 150 |
| 3063 | Brick, Round Corner 2 x 2 Macaroni with Stud Notch
Catalog: Parts: Brick, Round | 11 |
| 85080 | Brick, Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside
Catalog: Parts: Brick, Round | 674 |
| 3063a | Brick, Round Corner 2 x 2 Macaroni without Stud Notch
Catalog: Parts: Brick, Round | 16 |
| 88293 | Brick, Round Corner 3 x 3 x 2 Dome Top
Catalog: Parts: Brick, Round | 2 |
| x1042b | Brick, Round Corner 4 x 2 Macaroni Double with Stud Notches
Catalog: Parts: Brick, Round | 1 |
| 48092 | Brick, Round Corner 4 x 4 Macaroni Wide with 3 Studs
Catalog: Parts: Brick, Round | 1 |
| 49612 | Brick, Round Corner 4 x 4 x 2 2/3 Dome Top
Catalog: Parts: Brick, Round | 18 |
| 24599 | Brick, Round Corner 5 x 5 x 1 without Studs
Catalog: Parts: Brick, Round | 1 |